将含钨的碳化物的等温淬火球墨铸铁(Carbidic Austempered Ductile Iron简称CADI)铸件在900℃高温奥氏体化后,在盐浴不同温度等温处理及保温不同的时间,对试样作力学性能和耐磨性对比测试。结果表明,当盐浴温度为280℃时硬度最高,耐磨性最好。但冲击韧度较小;当温度提高到340℃,C曲线左移,贝氏体晶粒粗化,试样的硬度下降此时材料的冲击韧度最好。 Carbidic Austempered Ductile Iron (CADI) castings were austenitized at high temperature of 900 ℃ and were treated at different temperatures in salt bath for different time. Abrasion resistance comparison test. The results show that when the salt bath temperature is 280 ℃, the hardness is the highest and the wear resistance is the best. But the impact toughness is small. When the temperature is increased to 340 ℃, the C curve shifts to the left and the bainite grain coarsens. The hardness of the sample decreases and the impact toughness of the material is the best.